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Chapter 4: Motherboard Connections
HDD LED
The HDD LED connection is located on pins 13 and 14 of JF1. Attach a cable to pin 14 to
show hard drive activity status. Refer to the table below for pin denitions.
HDD LED
Pin Denitions (JF1)
Pins Denition
13 3.3V Stdby
14 HDD Active
Power LED
The Power LED connection is located on pins 15 and 16 of JF1. Refer to the table below
for pin denitions.
Power LED
Pin Denitions (JF1)
Pins Denition
15 3.3V
16 PWR LED
NMI Button
The non-maskable interrupt (NMI) button header is located on pins 19 and 20 of JF1. Refer
to the table below for pin denitions.
NMI Button
Pin Denitions (JF1)
Pins Denition
19 Control
20 Ground